Wyoming Snow Precipitation Update
United States Natural Resources Water and Climate Center
Department of Conservation Portland, Oregon
Agriculture Service
S N O W - P R E C I P I T A T I O N U P D A T E
Based on Mountain Data from NRCS SNOTEL Sites
As of THURSDAY: FEBRUARY 27 , 1997
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
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WYOMING
SNAKE RIVER
BASE CAMP 7030 26.8 15.5 173 27.6 19.8 139
COTTONWOOD CREEK 7600 26.5 18.2 146 27.8 21.9 127
GRANITE CREEK 6770 26.9 15.2 177 22.3 20.8 107
GRASSY LAKE 7265 40.5 29.6 137 38.6 32.1 120
GROS VENTRE SUMMIT 8775 19.2 12.7 151 17.9 14.0 128
LEWIS LAKE DIVIDE 7860 48.1 29.1 165 -M 32.6 *
PHILLIPS BENCH 8200 35.9 23.9 150 39.8 25.8 154
SALT RIVER SUMMIT 7600 19.9 11.9 167 21.3 14.9 143
SNAKE RIVER STATION 6920 25.7 16.0 161 32.4 22.5 144
SPRING CREEK DIVIDE 9000 32.0 22.9 140 -M 23.8 *
THUMB DIVIDE 7980 28.6 14.1 203 -M 18.6 *
TOGWOTEE PASS 9580 30.2 20.5 147 -M 24.4 *
TWO OCEAN PLATEAU 9360 38.9 21.9 178 -M 27.3 *
WILLOW CREEK 8450 33.3 25.5 131 36.8 28.2 130
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Basin wide percent of average 156 132
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 31.5 19.6 161 -M 14.9 *
BLACK BEAR 7950 -M 31.2 * -M 33.2 *
CANYON 7940 21.2 10.5 202 23.2 11.9 195
FISHER CREEK 9100 48.8 29.9 163 -M 30.3 *
MADISON PLATEAU 7750 36.0 20.3 177 34.8 21.5 162
NORTHEAST ENTRANCE 7350 11.2 8.0 140 16.9 10.1 167
PARKER PEAK 9400 27.7 17.7 156 -M 12.9 *
SYLVAN LAKE 8420 28.0 18.3 153 -M 16.1 *
THUMB DIVIDE 7980 28.6 14.1 203 -M 18.6 *
TWO OCEAN PLATEAU 9360 38.9 21.9 178 -M 27.3 *
WHISKEY CREEK 6800 22.2 14.3 155 -M 17.7 *
WHITE MILL 8700 33.5 20.9 160 -M 23.5 *
WOLVERINE 7650 14.4 10.0 144 13.8 10.8 128
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Basin wide percent of average 166 163*
WIND RIVER
BURROUGHS CREEK 8750 21.7 12.9 168 -M 13.8 *
CHRISTINA LAKE 9980 18.3 12.5 146 19.5 13.1 149
COLD SPRINGS 9630 9.0 6.9 130 10.0 8.3 120
HOBBS PARK 10100 15.0 11.9 126 11.6 11.1 105
LITTLE WARM 9620 15.5 9.1 170 16.4 10.7 153
SOUTH PASS 9040 23.4 13.8 170 21.8 13.6 160
ST. LAWRENCE ALT 8620 8.0 6.1 131 9.4 7.9 119
TOGWOTEE PASS 9580 30.2 20.5 147 -M 24.4 *
TOWNSEND CREEK 8700 9.1 7.9 115 10.1 9.7 104
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Basin wide percent of average 148 133
BIGHORN BASIN
BALD MTN. 9375 19.0 16.8 113 15.7 13.9 113
BEAR TRAP MEADOW 7900 6.7 5.8 116 7.1 6.2 115
BLACKWATER 9780 32.7 17.7 185 24.6 15.0 164
BONE SPRINGS DIV 9350 15.8 13.2 120 14.1 11.5 123
EVENING STAR 9200 36.8 22.2 166 -M 18.7 *
GRAVE SPRINGS 8550 9.8 -M * 9.3 7.3 127
KIRWIN 9550 13.2 8.0 165 14.6 8.5 172
LOST CREEK 8080 12.3 10.5 117 12.5 9.2 136
MARQUETTE 8760 9.1 6.4 142 9.2 7.0 131
MIDDLE POWDER 7760 12.3 9.6 128 11.4 9.1 125
OWL CREEK 8975 6.7 3.6 186 5.5 4.8 115
POWDER RIVER PASS 9480 11.9 8.7 137 11.4 9.3 123
SHELL CREEK 9580 15.3 12.4 123 12.5 10.5 119
SYLVAN LAKE 8420 28.0 18.3 153 -M 16.1 *
SYLVAN ROAD 8120 18.7 11.0 170 24.3 13.4 181
TIMBER CREEK 7950 5.9 4.8 123 6.5 5.0 130
YOUNTS PEAK 8350 20.5 14.6 140 -M 13.7 *
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Basin wide percent of average 144 137
SHOSHONE RIVER
BLACKWATER 9780 32.7 17.7 185 24.6 15.0 164
EVENING STAR 9200 36.8 22.2 166 -M 18.7 *
KIRWIN 9550 13.2 8.0 165 14.6 8.5 172
MARQUETTE 8760 9.1 6.4 142 9.2 7.0 131
SYLVAN LAKE 8420 28.0 18.3 153 -M 16.1 *
SYLVAN ROAD 8120 18.7 11.0 170 24.3 13.4 181
YOUNTS PEAK 8350 20.5 14.6 140 -M 13.7 *
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Basin wide percent of average 162 166
POWDER-TONGUE
BEAR TRAP MEADOW 7900 6.7 5.8 116 7.1 6.2 115
BONE SPRINGS DIV 9350 15.8 13.2 120 14.1 11.5 123
BURGESS JUNCTION 7880 10.7 9.5 113 10.9 8.5 128
CLOUD PEAK RESERVOIR 9860 15.2 10.9 139 12.6 10.1 125
DOME LAKE 8880 9.8 11.1 88 11.7 10.3 114
GRAVE SPRINGS 8550 9.8 -M * 9.3 7.3 127
HANSEN SAWMILL 8760 6.4 5.6 114 6.5 5.9 110
LOST CREEK 8080 12.3 10.5 117 12.5 9.2 136
MIDDLE POWDER 7760 12.3 9.6 128 11.4 9.1 125
POWDER RIVER PASS 9480 11.9 8.7 137 11.4 9.3 123
SUCKER CREEK 8880 12.2 9.6 127 12.0 10.4 115
TIE CREEK 6870 7.3 -M * 9.8 8.1 121
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Basin wide percent of average 120 122
BELLE FOURCHE
BLIND PARK 6890 9.7 9.0 108 13.6 7.5 181
NORTH RAPID CREEK 6130 9.6 -M * 12.1 -M *
WARREN PEAK 6520 15.8 9.0 176 -M 6.1 *
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Basin wide percent of average 142 181*
UPPER N. PLATTE RIVER
COLUMBINE 9400 27.5 20.6 133 26.8 20.2 133
DIVIDE PEAK 8800 21.8 16.6 131 21.1 18.5 114
ELK RIVER 8700 25.1 16.4 153 22.5 15.3 147
JOE WRIGHT 10120 20.6 17.2 120 25.5 19.9 128
NORTH FRENCH CREEK 10100 31.3 20.1 156 25.6 18.6 138
OLD BATTLE 10000 33.9 25.8 131 32.3 24.1 134
SOUTH BRUSH CREEK 8400 13.5 9.2 147 15.7 12.7 124
TOWER 10500 49.5 36.8 135 36.3 29.6 123
WEBBER SPRINGS 9200 27.9 22.0 127 31.5 20.4 154
WILLOW CREEK PASS 9540 16.2 9.1 178 12.9 9.8 132
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Basin wide percent of average 138 132
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 30.2 19.6 154 23.6 15.3 154
CASPER MTN. 7900 17.4 12.1 144 16.4 10.6 155
CHRISTINA LAKE 9980 18.3 12.5 146 19.5 13.1 149
DEADMAN HILL 10220 13.9 13.3 105 15.6 12.8 122
LAPRELE CREEK 8320 13.5 8.3 163 12.6 9.0 140
RENO HILL 8400 18.7 10.6 176 16.0 14.4 111
ROACH 9700 19.3 13.8 140 19.6 17.1 115
SAND LAKE 10080 31.9 26.4 121 25.1 16.2 155
SOUTH PASS 9040 23.4 13.8 170 21.8 13.6 160
WINDY PEAK 7840 9.1 6.1 149 10.4 7.0 149
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Basin wide percent of average 143 140
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 15.5 9.7 160 16.6 12.5 133
DIVIDE PEAK 8800 21.8 16.6 131 21.1 18.5 114
OLD BATTLE 10000 33.9 25.8 131 32.3 24.1 134
SANDSTONE RS 8150 18.2 12.0 152 20.0 15.3 131
WHISKEY PARK 8950 34.2 23.2 147 29.8 22.3 134
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Basin wide percent of average 142 129
UPPER GREEN RIVER
BIG SANDY OPENING 9100 17.4 11.9 146 15.4 14.3 108
BLIND BULL SUM 8650 36.8 23.9 154 -M 20.7 *
EAST RIM DIVIDE 7930 14.9 11.8 126 15.3 13.4 114
ELKHART PARK G.S. 9400 16.6 11.3 147 16.4 14.1 116
GROS VENTRE SUMMIT 8775 19.2 12.7 151 17.9 14.0 128
KENDALL R.S. 7740 21.6 12.3 176 17.5 13.7 128
LOOMIS PARK 8240 -M 14.7 * 19.7 16.6 119
NEW FORK LAKE 8340 13.4 9.8 137 12.1 12.7 95
SNIDER BASIN 8250 20.7 12.6 164 17.5 13.4 131
SPRING CREEK DIVIDE 9000 32.0 22.9 140 -M 23.8 *
TRIPLE PEAK 8500 31.7 21.4 148 32.8 27.5 119
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Basin wide percent of average 149 118
LOWER GREEN RIVER
HAMS FORK 7840 15.5 10.3 150 13.6 11.8 115
HEWINTA 9500 11.8 8.3 142 12.3 10.1 122
HICKERSON PARK 9150 6.9 4.9 141 7.9 7.1 111
HOLE-IN-ROCK 9150 6.7 4.4 152 8.2 7.1 115
INDIAN CREEK 9425 35.8 22.6 158 28.6 22.2 129
KELLEY R.S. 8180 21.8 14.0 156 24.4 16.6 147
STEEL CREEK PARK 10100 13.9 12.4 112 13.5 10.2 132
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Basin wide percent of average 146 127
UPPER BEAR RIVER
BUG LAKE 7950 29.3 16.7 175 26.7 15.7 170
HAYDEN FORK 9400 18.2 13.5 135 22.8 15.0 152
KELLEY R.S. 8180 21.8 14.0 156 24.4 16.6 147
LILY LAKE 9050 15.6 10.4 150 17.3 11.5 150
MONTE CRISTO 8960 37.6 23.0 163 30.3 20.5 148
SALT RIVER SUMMIT 7600 19.9 11.9 167 21.3 14.9 143
TRIAL LAKE 9960 33.1 20.8 159 32.0 19.4 165
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Basin wide percent of average 159 154
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-M = Missing data
* = Data may not provide a valid measure of conditions.
If the Basin wide percent of average value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
The SNOW WATER EQUIVALENT Percent of Average represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the average value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the average value for those sites on this day.
Contact your state water supply staff for assistance.
Reference period for average conditions is 1961-90.
Provisional data, subject to revision.
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Normal Snow Water Equivalent and
Total Precipitation values
If the Basin Index (%) value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
The SNOW WATER EQUIVALENT Percent of Median represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the Average value for those sites on this day.
Contact your state water supply staff for assistance.
Medians and averages are calculated for the period 1981-2010.
Provisional data, subject to revision.
* Site -- Either: (a) the current value is missing; (b) the median or
average for the day is not available or is zero; or (c) for snow water
equivalent, the median for the day is less than 10% of the maximum
median value for the year.
* Basin - More than half of the sites within the basin are flagged with *,
preventing the calculation of a meaningful basin index.
The basin index is calculated as the sum of the valid current values
divided by the sum of the corresponding medians (for snow water equivalent)
or averages (for precipitation) and the resulting fraction multiplied by 100.